Description

In the Linux kernel, the following vulnerability has been resolved:

x86/microcode/AMD: Fix __apply_microcode_amd()'s return value

When verify_sha256_digest() fails, __apply_microcode_amd() should propagate
the failure by returning false (and not -1 which is promoted to true).

Classification

CVE ID: CVE-2025-22047

Affected Products

Vendor: Linux

Product: Linux, Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 3.07% (scored less or equal to compared to others)

EPSS Date: 2025-04-20 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-22047
https://git.kernel.org/stable/c/763f4d638f71cb45235395790a46e9f9e84227fd
https://git.kernel.org/stable/c/ada88219d5315fc13f2910fe278c7112d8d68889
https://git.kernel.org/stable/c/d295c58fad1d5ab987a81f139dd21498732c4f13
https://git.kernel.org/stable/c/7f705a45f130a85fbf31c2abdc999c65644c8307
https://git.kernel.org/stable/c/31ab12df723543047c3fc19cb8f8c4498ec6267f

Timeline